Work

Sintered La10−xNdxSi6O27 (x = 0, 0.1, 0.2, 0.3) by spark plasma sintering and its microstructure and electrical conductivity

Year: 2024

Type: article

Abstract: La 10− x Nd x Si 6 O 27 ( x = 0, 0.1, 0.2, 0.3) was synthesized via planetary grinding, and dense ceramic discs were prepared using SPS technology. The structure, microstructure, density, open porosity, total conductivity and electronic conductivity of the samples were measured and analyzed, respectively. La 10− x Nd x Si 6 O 27 is characterized by a hexagonal apatite structure. The elements in the sample are distributed in a uniform manner and the content is consistent with the stoichiometry. The total conductivity of La 10− x Nd x Si 6 O 27 exhibits an increase with the incorporation of Nd 3+ content in the doped samples of x = 0.1, 0.2, and 0.3. The total conductivity of La 9.7 Nd 0.3 Si 6 O 27 is the highest, reaching 5.39 × 10 −3 S cm −1 at 850 °C. The electron mobility of the sample is less than 1%, which is suitable for use as a solid electrolyte.

Source: Scientific Reports

DOI: 10.1038/s41598-024-73364-1

Authors: Dongliang Li, Xiangnan Wang, Xiaoming Sun

Institutions: Luliang University, Shandong University of Science and Technology

Language: English

Topic: Advancements in Solid Oxide Fuel Cells

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,590

Funder: Natural Science Foundation of Shandong Province